text: #!/usr/bin/env python3
  
  import click
  
  from habu.lib.xor import xor
  
  
  @click.command()
  @click.option('-k', default='0', help='Encryption key')
  @click.option('-i', type=click.File('rb'), default='-', help='Input file (default: stdin)')
  @click.option('-o', type=click.File('wb'), default='-', help='Output file (default: stdout)')
  def cmd_crypto_xor(k, i, o):
      """XOR cipher.
  
      Note: XOR is not a 'secure cipher'. If you need strong crypto you must use
      algorithms like AES. You can use habu.fernet for that.
  
      Example:
  
      \b
      $ habu.xor -k mysecretkey -i /bin/ls > xored
      $ habu.xor -k mysecretkey -i xored > uxored
      $ sha1sum /bin/ls uxored
      $ 6fcf930fcee1395a1c95f87dd38413e02deff4bb  /bin/ls
      $ 6fcf930fcee1395a1c95f87dd38413e02deff4bb  uxored
      """
  
      o.write(xor(i.read(), k.encode()))
  
  
  if __name__ == '__main__':
      cmd_crypto_xor()
  
  